It is a school battle cry that started during the 1940's indicating that members of the Glenville athletic teams would whack the "tar" and "blood" from its opponents. Thus, our colors are red and black. The team mascot symbol is a cross between a robot and a tin man derived from the imagination of a former Glenville student.

Another explanation is that a Tarlooder was a person who installed the ties for the railroads. Each tie was soaked in tar and the workers worked so hard they were said to sweat "tar" and "blood". Thus, the mascot symbolized hard working, committed, dedicated individuals in the school and community.